While Tumblr may not be the most comprehensive or sophisticated social site, with most of its content consisting of GIFs and teenage angst, it does have certain areas where it excels.  It works well as a portfolio site or catalog, for example.  

This is especially good news for users who sell handmade products or promote crowdfunding projects, because now Tumblr enables purchases or payments directly through the site with the use of a new “Buy” button.  Twitter has already experimented with this type of feature, but the format of a service like Tumblr seems like it would benefit much more from one-click purchases.  

All one has to do is enter a link to an Etsy or Kick-starter page on their Tumblr, and a post with a ‘buy’ button will appear. 

Source: Engadget